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b4fdedc2 OM |
1 | /** @file\r |
2 | *\r | |
eff98cf9 | 3 | * Copyright (c) 2011-2015, ARM Limited. All rights reserved.\r |
b4fdedc2 OM |
4 | *\r |
5 | * This program and the accompanying materials\r | |
6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
7 | * which accompanies this distribution. The full text of the license may be found at\r | |
8 | * http://opensource.org/licenses/bsd-license.php\r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
b4fdedc2 OM |
15 | #include "Mmc.h"\r |
16 | \r | |
17 | typedef union {\r | |
18 | UINT32 Raw;\r | |
19 | OCR Ocr;\r | |
20 | } OCR_RESPONSE;\r | |
21 | \r | |
22 | #define MAX_RETRY_COUNT 1000\r | |
23 | #define CMD_RETRY_COUNT 20\r | |
24 | #define RCA_SHIFT_OFFSET 16\r | |
25 | #define EMMC_CARD_SIZE 512\r | |
26 | #define EMMC_ECSD_SIZE_OFFSET 53\r | |
27 | \r | |
28 | UINT32 mEmmcRcaCount = 0;\r | |
29 | \r | |
30 | STATIC\r | |
31 | EFI_STATUS\r | |
32 | EFIAPI\r | |
33 | EmmcIdentificationMode (\r | |
34 | IN MMC_HOST_INSTANCE *MmcHostInstance,\r | |
35 | IN OCR_RESPONSE Response\r | |
36 | )\r | |
37 | {\r | |
38 | EFI_MMC_HOST_PROTOCOL *Host;\r | |
39 | EFI_BLOCK_IO_MEDIA *Media;\r | |
40 | EFI_STATUS Status;\r | |
41 | UINT32 RCA;\r | |
42 | UINT32 ECSD[128];\r | |
43 | \r | |
44 | Host = MmcHostInstance->MmcHost;\r | |
45 | Media = MmcHostInstance->BlockIo.Media;\r | |
46 | \r | |
47 | // Fetch card identity register\r | |
48 | Status = Host->SendCommand (Host, MMC_CMD2, 0);\r | |
49 | if (EFI_ERROR (Status)) {\r | |
50 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to send CMD2, Status=%r.\n", Status));\r | |
51 | return Status;\r | |
52 | }\r | |
53 | \r | |
54 | Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R2, (UINT32 *)&(MmcHostInstance->CardInfo.CIDData));\r | |
55 | if (EFI_ERROR (Status)) {\r | |
56 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): CID retrieval error, Status=%r.\n", Status));\r | |
57 | return Status;\r | |
58 | }\r | |
59 | \r | |
60 | // Assign a relative address value to the card\r | |
61 | MmcHostInstance->CardInfo.RCA = ++mEmmcRcaCount; // TODO: might need a more sophisticated way of doing this\r | |
62 | RCA = MmcHostInstance->CardInfo.RCA << RCA_SHIFT_OFFSET;\r | |
63 | Status = Host->SendCommand (Host, MMC_CMD3, RCA);\r | |
64 | if (EFI_ERROR (Status)) {\r | |
65 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): RCA set error, Status=%r.\n", Status));\r | |
66 | return Status;\r | |
67 | }\r | |
68 | \r | |
69 | // Fetch card specific data\r | |
70 | Status = Host->SendCommand (Host, MMC_CMD9, RCA);\r | |
71 | if (EFI_ERROR (Status)) {\r | |
72 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Failed to send CMD9, Status=%r.\n", Status));\r | |
73 | return Status;\r | |
74 | }\r | |
75 | \r | |
76 | Status = Host->ReceiveResponse (Host, MMC_RESPONSE_TYPE_R2, (UINT32 *)&(MmcHostInstance->CardInfo.CSDData));\r | |
77 | if (EFI_ERROR (Status)) {\r | |
78 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): CSD retrieval error, Status=%r.\n", Status));\r | |
79 | return Status;\r | |
80 | }\r | |
81 | \r | |
82 | // Select the card\r | |
83 | Status = Host->SendCommand (Host, MMC_CMD7, RCA);\r | |
84 | if (EFI_ERROR (Status)) {\r | |
85 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): Card selection error, Status=%r.\n", Status));\r | |
86 | }\r | |
87 | \r | |
88 | // Fetch ECSD\r | |
89 | Status = Host->SendCommand (Host, MMC_CMD8, RCA);\r | |
90 | if (EFI_ERROR (Status)) {\r | |
91 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD fetch error, Status=%r.\n", Status));\r | |
92 | }\r | |
93 | \r | |
94 | Status = Host->ReadBlockData (Host, 0, 512, ECSD);\r | |
95 | if (EFI_ERROR (Status)) {\r | |
96 | DEBUG ((EFI_D_ERROR, "EmmcIdentificationMode(): ECSD read error, Status=%r.\n", Status));\r | |
97 | return Status;\r | |
98 | }\r | |
99 | \r | |
100 | // Set up media\r | |
101 | Media->BlockSize = EMMC_CARD_SIZE; // 512-byte support is mandatory for eMMC cards\r | |
102 | Media->MediaId = MmcHostInstance->CardInfo.CIDData.PSN;\r | |
103 | Media->ReadOnly = MmcHostInstance->CardInfo.CSDData.PERM_WRITE_PROTECT;\r | |
104 | Media->LogicalBlocksPerPhysicalBlock = 1;\r | |
105 | Media->IoAlign = 4;\r | |
106 | // Compute last block using bits [215:212] of the ECSD\r | |
107 | Media->LastBlock = ECSD[EMMC_ECSD_SIZE_OFFSET] - 1; // eMMC isn't supposed to report this for\r | |
108 | // Cards <2GB in size, but the model does.\r | |
109 | \r | |
110 | // Setup card type\r | |
111 | MmcHostInstance->CardInfo.CardType = EMMC_CARD;\r | |
112 | return EFI_SUCCESS;\r | |
113 | }\r | |
114 | \r | |
115 | STATIC\r | |
116 | EFI_STATUS\r | |
117 | InitializeSdMmcDevice (\r | |
118 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
119 | )\r | |
120 | {\r | |
121 | UINT32 CmdArg;\r | |
122 | UINT32 Response[4];\r | |
123 | UINTN BlockSize;\r | |
124 | UINTN CardSize;\r | |
125 | UINTN NumBlocks;\r | |
126 | EFI_STATUS Status;\r | |
127 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
128 | \r | |
129 | MmcHost = MmcHostInstance->MmcHost;\r | |
130 | \r | |
131 | // Send a command to get Card specific data\r | |
132 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
133 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD9, CmdArg);\r | |
134 | if (EFI_ERROR (Status)) {\r | |
135 | DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(MMC_CMD9): Error, Status=%r\n", Status));\r | |
136 | return Status;\r | |
137 | }\r | |
138 | \r | |
139 | // Read Response\r | |
140 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CSD, Response);\r | |
141 | if (EFI_ERROR (Status)) {\r | |
142 | DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(): Failed to receive CSD, Status=%r\n", Status));\r | |
143 | return Status;\r | |
144 | }\r | |
145 | PrintCSD (Response);\r | |
146 | \r | |
147 | if (MmcHostInstance->CardInfo.CardType == SD_CARD_2_HIGH) {\r | |
148 | CardSize = HC_MMC_CSD_GET_DEVICESIZE (Response);\r | |
149 | NumBlocks = ((CardSize + 1) * 1024);\r | |
150 | BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r | |
151 | } else {\r | |
152 | CardSize = MMC_CSD_GET_DEVICESIZE (Response);\r | |
153 | NumBlocks = (CardSize + 1) * (1 << (MMC_CSD_GET_DEVICESIZEMULT (Response) + 2));\r | |
154 | BlockSize = 1 << MMC_CSD_GET_READBLLEN (Response);\r | |
155 | }\r | |
156 | \r | |
157 | // For >=2G card, BlockSize may be 1K, but the transfer size is 512 bytes.\r | |
158 | if (BlockSize > 512) {\r | |
159 | NumBlocks = MultU64x32 (NumBlocks, BlockSize / 512);\r | |
160 | BlockSize = 512;\r | |
161 | }\r | |
162 | \r | |
163 | MmcHostInstance->BlockIo.Media->LastBlock = (NumBlocks - 1);\r | |
164 | MmcHostInstance->BlockIo.Media->BlockSize = BlockSize;\r | |
165 | MmcHostInstance->BlockIo.Media->ReadOnly = MmcHost->IsReadOnly (MmcHost);\r | |
166 | MmcHostInstance->BlockIo.Media->MediaPresent = TRUE;\r | |
167 | MmcHostInstance->BlockIo.Media->MediaId++;\r | |
168 | \r | |
169 | CmdArg = MmcHostInstance->CardInfo.RCA << 16;\r | |
170 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD7, CmdArg);\r | |
171 | if (EFI_ERROR (Status)) {\r | |
172 | DEBUG((EFI_D_ERROR, "InitializeSdMmcDevice(MMC_CMD7): Error and Status = %r\n", Status));\r | |
173 | return Status;\r | |
174 | }\r | |
175 | \r | |
176 | return EFI_SUCCESS;\r | |
177 | }\r | |
178 | \r | |
179 | STATIC\r | |
180 | EFI_STATUS\r | |
181 | EFIAPI\r | |
182 | MmcIdentificationMode (\r | |
183 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
184 | )\r | |
185 | {\r | |
186 | EFI_STATUS Status;\r | |
187 | UINT32 Response[4];\r | |
188 | UINTN Timeout;\r | |
189 | UINTN CmdArg;\r | |
190 | BOOLEAN IsHCS;\r | |
191 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
192 | OCR_RESPONSE OcrResponse;\r | |
193 | \r | |
194 | MmcHost = MmcHostInstance->MmcHost;\r | |
195 | CmdArg = 0;\r | |
196 | IsHCS = FALSE;\r | |
197 | \r | |
198 | if (MmcHost == NULL) {\r | |
199 | return EFI_INVALID_PARAMETER;\r | |
200 | }\r | |
201 | \r | |
202 | // We can get into this function if we restart the identification mode\r | |
203 | if (MmcHostInstance->State == MmcHwInitializationState) {\r | |
204 | // Initialize the MMC Host HW\r | |
205 | Status = MmcNotifyState (MmcHostInstance, MmcHwInitializationState);\r | |
206 | if (EFI_ERROR (Status)) {\r | |
207 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcHwInitializationState, Status=%r.\n", Status));\r | |
208 | return Status;\r | |
209 | }\r | |
210 | }\r | |
211 | \r | |
212 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD0, 0);\r | |
213 | if (EFI_ERROR (Status)) {\r | |
214 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD0): Error, Status=%r.\n", Status));\r | |
215 | return Status;\r | |
216 | }\r | |
217 | Status = MmcNotifyState (MmcHostInstance, MmcIdleState);\r | |
218 | if (EFI_ERROR (Status)) {\r | |
219 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdleState, Status=%r.\n", Status));\r | |
220 | return Status;\r | |
221 | }\r | |
222 | \r | |
139b5773 OM |
223 | // Send CMD1 to get OCR (MMC)\r |
224 | // This command only valid for MMC and eMMC\r | |
b4fdedc2 OM |
225 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, EMMC_CMD1_CAPACITY_GREATER_THAN_2GB);\r |
226 | if (Status == EFI_SUCCESS) {\r | |
227 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, (UINT32 *)&OcrResponse);\r | |
228 | if (EFI_ERROR (Status)) {\r | |
229 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));\r | |
230 | return Status;\r | |
231 | }\r | |
232 | \r | |
233 | if (!OcrResponse.Ocr.PowerUp) {\r | |
234 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD1): Card initialisation failure, Status=%r.\n", Status));\r | |
235 | return EFI_DEVICE_ERROR;\r | |
236 | }\r | |
237 | OcrResponse.Ocr.PowerUp = 0;\r | |
238 | if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB) {\r | |
239 | MmcHostInstance->CardInfo.OCRData.AccessMode = BIT1;\r | |
240 | }\r | |
241 | else {\r | |
242 | MmcHostInstance->CardInfo.OCRData.AccessMode = 0x0;\r | |
243 | }\r | |
139b5773 | 244 | // Check whether MMC or eMMC\r |
b4fdedc2 OM |
245 | if (OcrResponse.Raw == EMMC_CMD1_CAPACITY_GREATER_THAN_2GB ||\r |
246 | OcrResponse.Raw == EMMC_CMD1_CAPACITY_LESS_THAN_2GB) {\r | |
247 | return EmmcIdentificationMode (MmcHostInstance, OcrResponse);\r | |
248 | }\r | |
b4fdedc2 OM |
249 | }\r |
250 | \r | |
251 | // Are we using SDIO ?\r | |
252 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD5, 0);\r | |
253 | if (Status == EFI_SUCCESS) {\r | |
254 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD5): Error - SDIO not supported, Status=%r.\n", Status));\r | |
255 | return EFI_UNSUPPORTED;\r | |
256 | }\r | |
257 | \r | |
258 | // Check which kind of card we are using. Ver2.00 or later SD Memory Card (PL180 is SD v1.1)\r | |
259 | CmdArg = (0x0UL << 12 | BIT8 | 0xCEUL << 0);\r | |
260 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD8, CmdArg);\r | |
261 | if (Status == EFI_SUCCESS) {\r | |
262 | DEBUG ((EFI_D_ERROR, "Card is SD2.0 => Supports high capacity\n"));\r | |
263 | IsHCS = TRUE;\r | |
264 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_R7, Response);\r | |
265 | if (EFI_ERROR (Status)) {\r | |
266 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive response to CMD8, Status=%r.\n", Status));\r | |
267 | return Status;\r | |
268 | }\r | |
269 | PrintResponseR1 (Response[0]);\r | |
270 | // Check if it is valid response\r | |
271 | if (Response[0] != CmdArg) {\r | |
272 | DEBUG ((EFI_D_ERROR, "The Card is not usable\n"));\r | |
273 | return EFI_UNSUPPORTED;\r | |
274 | }\r | |
275 | } else {\r | |
276 | DEBUG ((EFI_D_ERROR, "Not a SD2.0 Card\n"));\r | |
277 | }\r | |
278 | \r | |
279 | // We need to wait for the MMC or SD card is ready => (gCardInfo.OCRData.PowerUp == 1)\r | |
280 | Timeout = MAX_RETRY_COUNT;\r | |
281 | while (Timeout > 0) {\r | |
282 | // SD Card or MMC Card ? CMD55 indicates to the card that the next command is an application specific command\r | |
283 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD55, 0);\r | |
284 | if (Status == EFI_SUCCESS) {\r | |
285 | DEBUG ((EFI_D_INFO, "Card should be SD\n"));\r | |
286 | if (IsHCS) {\r | |
287 | MmcHostInstance->CardInfo.CardType = SD_CARD_2;\r | |
288 | } else {\r | |
289 | MmcHostInstance->CardInfo.CardType = SD_CARD;\r | |
290 | }\r | |
291 | \r | |
292 | // Note: The first time CmdArg will be zero\r | |
293 | CmdArg = ((UINTN *) &(MmcHostInstance->CardInfo.OCRData))[0];\r | |
294 | if (IsHCS) {\r | |
295 | CmdArg |= BIT30;\r | |
296 | }\r | |
297 | Status = MmcHost->SendCommand (MmcHost, MMC_ACMD41, CmdArg);\r | |
298 | if (!EFI_ERROR (Status)) {\r | |
299 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r | |
300 | if (EFI_ERROR (Status)) {\r | |
301 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));\r | |
302 | return Status;\r | |
303 | }\r | |
304 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
305 | }\r | |
306 | } else {\r | |
307 | DEBUG ((EFI_D_INFO, "Card should be MMC\n"));\r | |
308 | MmcHostInstance->CardInfo.CardType = MMC_CARD;\r | |
309 | \r | |
310 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD1, 0x800000);\r | |
311 | if (!EFI_ERROR (Status)) {\r | |
312 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_OCR, Response);\r | |
313 | if (EFI_ERROR (Status)) {\r | |
314 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive OCR, Status=%r.\n", Status));\r | |
315 | return Status;\r | |
316 | }\r | |
317 | ((UINT32 *) &(MmcHostInstance->CardInfo.OCRData))[0] = Response[0];\r | |
318 | }\r | |
319 | }\r | |
320 | \r | |
321 | if (!EFI_ERROR (Status)) {\r | |
322 | if (!MmcHostInstance->CardInfo.OCRData.PowerUp) {\r | |
eff98cf9 | 323 | gBS->Stall (1);\r |
b4fdedc2 OM |
324 | Timeout--;\r |
325 | } else {\r | |
326 | if ((MmcHostInstance->CardInfo.CardType == SD_CARD_2) && (MmcHostInstance->CardInfo.OCRData.AccessMode & BIT1)) {\r | |
327 | MmcHostInstance->CardInfo.CardType = SD_CARD_2_HIGH;\r | |
328 | DEBUG ((EFI_D_ERROR, "High capacity card.\n"));\r | |
329 | }\r | |
330 | break; // The MMC/SD card is ready. Continue the Identification Mode\r | |
331 | }\r | |
332 | } else {\r | |
eff98cf9 | 333 | gBS->Stall (1);\r |
b4fdedc2 OM |
334 | Timeout--;\r |
335 | }\r | |
336 | }\r | |
337 | \r | |
338 | if (Timeout == 0) {\r | |
339 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(): No Card\n"));\r | |
340 | return EFI_NO_MEDIA;\r | |
341 | } else {\r | |
342 | PrintOCR (Response[0]);\r | |
343 | }\r | |
344 | \r | |
345 | Status = MmcNotifyState (MmcHostInstance, MmcReadyState);\r | |
346 | if (EFI_ERROR (Status)) {\r | |
347 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcReadyState\n"));\r | |
348 | return Status;\r | |
349 | }\r | |
350 | \r | |
351 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD2, 0);\r | |
352 | if (EFI_ERROR (Status)) {\r | |
353 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD2): Error\n"));\r | |
354 | return Status;\r | |
355 | }\r | |
356 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_CID, Response);\r | |
357 | if (EFI_ERROR (Status)) {\r | |
358 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive CID, Status=%r.\n", Status));\r | |
359 | return Status;\r | |
360 | }\r | |
361 | \r | |
362 | PrintCID (Response);\r | |
363 | \r | |
364 | Status = MmcHost->NotifyState (MmcHost, MmcIdentificationState);\r | |
365 | if (EFI_ERROR (Status)) {\r | |
366 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcIdentificationState\n"));\r | |
367 | return Status;\r | |
368 | }\r | |
369 | \r | |
370 | //\r | |
371 | // Note, SD specifications say that "if the command execution causes a state change, it\r | |
372 | // will be visible to the host in the response to the next command"\r | |
373 | // The status returned for this CMD3 will be 2 - identification\r | |
374 | //\r | |
375 | CmdArg = 1;\r | |
376 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD3, CmdArg);\r | |
377 | if (EFI_ERROR (Status)) {\r | |
378 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode(MMC_CMD3): Error\n"));\r | |
379 | return Status;\r | |
380 | }\r | |
381 | \r | |
382 | Status = MmcHost->ReceiveResponse (MmcHost, MMC_RESPONSE_TYPE_RCA, Response);\r | |
383 | if (EFI_ERROR (Status)) {\r | |
384 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Failed to receive RCA, Status=%r.\n", Status));\r | |
385 | return Status;\r | |
386 | }\r | |
387 | PrintRCA (Response[0]);\r | |
388 | \r | |
389 | // For MMC card, RCA is assigned by CMD3 while CMD3 dumps the RCA for SD card\r | |
390 | if (MmcHostInstance->CardInfo.CardType != MMC_CARD) {\r | |
391 | MmcHostInstance->CardInfo.RCA = Response[0] >> 16;\r | |
392 | } else {\r | |
393 | MmcHostInstance->CardInfo.RCA = CmdArg;\r | |
394 | }\r | |
395 | Status = MmcNotifyState (MmcHostInstance, MmcStandByState);\r | |
396 | if (EFI_ERROR (Status)) {\r | |
397 | DEBUG ((EFI_D_ERROR, "MmcIdentificationMode() : Error MmcStandByState\n"));\r | |
398 | return Status;\r | |
399 | }\r | |
400 | \r | |
401 | return EFI_SUCCESS;\r | |
402 | }\r | |
403 | \r | |
404 | EFI_STATUS\r | |
405 | InitializeMmcDevice (\r | |
406 | IN MMC_HOST_INSTANCE *MmcHostInstance\r | |
407 | )\r | |
408 | {\r | |
409 | EFI_STATUS Status;\r | |
410 | EFI_MMC_HOST_PROTOCOL *MmcHost;\r | |
411 | UINTN BlockCount;\r | |
412 | \r | |
413 | BlockCount = 1;\r | |
414 | MmcHost = MmcHostInstance->MmcHost;\r | |
415 | \r | |
416 | Status = MmcIdentificationMode (MmcHostInstance);\r | |
417 | if (EFI_ERROR (Status)) {\r | |
418 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error in Identification Mode, Status=%r\n", Status));\r | |
419 | return Status;\r | |
420 | }\r | |
421 | \r | |
422 | Status = MmcNotifyState (MmcHostInstance, MmcTransferState);\r | |
423 | if (EFI_ERROR (Status)) {\r | |
424 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(): Error MmcTransferState, Status=%r\n", Status));\r | |
425 | return Status;\r | |
426 | }\r | |
427 | \r | |
428 | if (MmcHostInstance->CardInfo.CardType != EMMC_CARD) {\r | |
429 | Status = InitializeSdMmcDevice (MmcHostInstance);\r | |
430 | if (EFI_ERROR (Status)) {\r | |
431 | return Status;\r | |
432 | }\r | |
433 | }\r | |
434 | \r | |
435 | // Set Block Length\r | |
436 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD16, MmcHostInstance->BlockIo.Media->BlockSize);\r | |
437 | if (EFI_ERROR (Status)) {\r | |
438 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD16): Error MmcHostInstance->BlockIo.Media->BlockSize: %d and Error = %r\n",\r | |
439 | MmcHostInstance->BlockIo.Media->BlockSize, Status));\r | |
440 | return Status;\r | |
441 | }\r | |
442 | \r | |
443 | // Block Count (not used). Could return an error for SD card\r | |
444 | if (MmcHostInstance->CardInfo.CardType == MMC_CARD) {\r | |
445 | Status = MmcHost->SendCommand (MmcHost, MMC_CMD23, BlockCount);\r | |
446 | if (EFI_ERROR (Status)) {\r | |
447 | DEBUG((EFI_D_ERROR, "InitializeMmcDevice(MMC_CMD23): Error, Status=%r\n", Status));\r | |
448 | return Status;\r | |
449 | }\r | |
450 | }\r | |
451 | \r | |
452 | return EFI_SUCCESS;\r | |
453 | }\r |